kq->queue->properties.write_ptr is a GPU address which can'd be derefenced in the kernel. Use kq->wptr_kernel instead, which is the kernel CPU address of the same buffer. Signed-off-by: Felix Kuehling <Felix.Kuehling at amd.com> --- drivers/gpu/drm/amd/amdkfd/kfd_kernel_queue.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_kernel_queue.c b/drivers/gpu/drm/amd/amdkfd/kfd_kernel_queue.c index 23e586b..9f38161 100644 --- a/drivers/gpu/drm/amd/amdkfd/kfd_kernel_queue.c +++ b/drivers/gpu/drm/amd/amdkfd/kfd_kernel_queue.c @@ -279,7 +279,7 @@ static void submit_packet(struct kernel_queue *kq) static void rollback_packet(struct kernel_queue *kq) { - kq->pending_wptr = *kq->queue->properties.write_ptr; + kq->pending_wptr = *kq->wptr_kernel; } struct kernel_queue *kernel_queue_init(struct kfd_dev *dev, -- 2.7.4